﻿import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/Welcome.vue'
import Users from '../components/user/Users.vue'
import Roles from '../components/power/Roles.vue'
import Rights from '../components/power/Rights.vue'
import Cate from '../components/goods/Cate.vue'
import Params from '../components/goods/Params.vue'
import GoodsList from '../components/goods/List.vue'
import Add from '../components/goods/Add.vue'
import Order from '../components/order/Order.vue'
import Report from '../components/report/Report.vue'

Vue.use(VueRouter)

const routes = [{
    path: '/',
    redirect: '/login'
  }, // 重定向路径
  {
    path: '/login',
    component: Login
  },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [{
        path: '/welcome',
        component: Welcome
      },
      {
        path: '/users',
        component: Users
      },
      {
        path: '/roles',
        component: Roles
      },
      {
        path: '/rights',
        component: Rights
      },
      {
        path: '/categories',
        component: Cate
      },
      {
        path: '/params',
        component: Params
      },
      {
        path: '/goods',
        component: GoodsList
      },
      {
        path: '/goods/add',
        component: Add
      },
      {
        path: '/orders',
        component: Order
      },
      {
        path: '/reports',
        component: Report
      }
    ]
  }
]

const router = new VueRouter({
  routes
})

// 路由导航守卫控制访问权限
// 如果用户没有登录，但是直接通过URL访问特定页面，需要重新导航到登录页面。

// 1.挂载路由导航守卫
router.beforeEach((to, form, next) => {
  // to 将要访问的路径
  // from代表从哪个路径跳转而来
  // next是一个函数，表示放行
  // next() 放行next('/login')强制跳转
  if (to.path === '/login') return next()

  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  if (!tokenStr) return next('/login')
  next()
})

export default router
